Was told by two very knowledgeable people in the industry that Purina farmed out the manufacture of their feed on a regular basis. That could explain why there seemed to be a variation in appearence.
The fact that no one that I am aware of from Purina has ever come on this website to promote their product, or respond to questions doesn't say a lot for them.
That said I've had pretty decent luck with their product in the past but did notice the fatty livers as did a few of my aquaculture colleages.
I look forward to getting a formulation for my trout as even feeding them once a day caused them to be built like toads.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
